JPH02501004A - 一様な横方向の誘導磁界を発生させるための円筒形永久磁石 - Google Patents

一様な横方向の誘導磁界を発生させるための円筒形永久磁石

Info

Publication number: JPH02501004A
Authority: JP; Japan
Prior art keywords: magnetization; magnet; magnetic field; block; blocks
Prior art date: 1986-10-17
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Pending

Application number

JP62506178A

Other languages

English (en)

Japanese (ja)

Inventor

オベール，ギー

Original Assignee

ジェネラル　エレクトリック　セージェーエール　エス．アー．

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1986-10-17

Filing date

1987-10-13

Publication date

1990-04-05

1987-10-13 Application filed by ジェネラル　エレクトリック　セージェーエール　エス．アー． filed Critical ジェネラル　エレクトリック　セージェーエール　エス．アー．

1990-04-05 Publication of JPH02501004A publication Critical patent/JPH02501004A/ja

Status Pending legal-status Critical Current

Links

230000005291 magnetic effect Effects 0.000 title claims description 61
230000005415 magnetization Effects 0.000 claims description 70
238000005192 partition Methods 0.000 claims description 9
239000004575 stone Substances 0.000 claims description 4
238000000034 method Methods 0.000 description 14
239000000696 magnetic material Substances 0.000 description 11
238000004519 manufacturing process Methods 0.000 description 9
239000000463 material Substances 0.000 description 6
230000008901 benefit Effects 0.000 description 5
238000009826 distribution Methods 0.000 description 5
238000005481 NMR spectroscopy Methods 0.000 description 3
238000001816 cooling Methods 0.000 description 3
230000004907 flux Effects 0.000 description 3
238000001308 synthesis method Methods 0.000 description 3
238000010586 diagram Methods 0.000 description 2
239000003814 drug Substances 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
238000013421 nuclear magnetic resonance imaging Methods 0.000 description 2
239000011347 resin Substances 0.000 description 2
229920005989 resin Polymers 0.000 description 2
229910000521 B alloy Inorganic materials 0.000 description 1
241000282994 Cervidae Species 0.000 description 1
239000004593 Epoxy Substances 0.000 description 1
QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
239000000853 adhesive Substances 0.000 description 1
230000001070 adhesive effect Effects 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
239000000956 alloy Substances 0.000 description 1
229910052788 barium Inorganic materials 0.000 description 1
DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
238000004364 calculation method Methods 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
239000002131 composite material Substances 0.000 description 1
239000012809 cooling fluid Substances 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
230000005294 ferromagnetic effect Effects 0.000 description 1
230000017525 heat dissipation Effects 0.000 description 1
230000006698 induction Effects 0.000 description 1
230000005389 magnetism Effects 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
238000005457 optimization Methods 0.000 description 1
230000008520 organization Effects 0.000 description 1
230000008569 process Effects 0.000 description 1
230000009467 reduction Effects 0.000 description 1
230000000630 rising effect Effects 0.000 description 1
229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
229910052712 strontium Inorganic materials 0.000 description 1
CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
238000010189 synthetic method Methods 0.000 description 1
229910000859 α-Fe Inorganic materials 0.000 description 1

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0273—Magnetic circuits with PM for magnetic field generation
- H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Power Engineering (AREA)
Condensed Matter Physics & Semiconductors (AREA)
General Physics & Mathematics (AREA)
Magnetic Resonance Imaging Apparatus (AREA)

JP62506178A 1986-10-17 1987-10-13 一様な横方向の誘導磁界を発生させるための円筒形永久磁石 Pending JPH02501004A (ja)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8614417A FR2605450B1 (fr)	1986-10-17	1986-10-17	Aimant permanent cylindrique pour produire un champ d'induction uniforme et transverse
FR86/14417		1986-10-17

Publications (1)

Publication Number	Publication Date
JPH02501004A true JPH02501004A (ja)	1990-04-05

Family

ID=9339927

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP62506178A Pending JPH02501004A (ja)	1986-10-17	1987-10-13	一様な横方向の誘導磁界を発生させるための円筒形永久磁石

Country Status (6)

Country	Link
US (1)	US4999600A (fr)
EP (1)	EP0328537B1 (fr)
JP (1)	JPH02501004A (fr)
DE (1)	DE3783774T2 (fr)
FR (1)	FR2605450B1 (fr)
WO (1)	WO1988002923A1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT8921079A0 (it) *	1989-07-03	1989-07-03	Comec Srl	Sistema per la fabbricazione di magneti permanenti senza giochi, generatori di campo magnetico uniforme e relativi magneti permanenti elementari o compositi.
US4994777A (en) *	1989-11-14	1991-02-19	The United States Of America As Represented By The Secretary Of The Army	Enhanced magnetic field within enclosed cylindrical cavity
US5095271A (en) *	1990-05-14	1992-03-10	General Atomics	Compact open NMR systems for in situ measurement of moisture, salinity, and hydrocarbons
FR2665297B1 (fr) *	1990-07-30	1992-10-09	Centre Nat Rech Scient	Aimant permanent pour installation d'imagerie par resonance magnetique nucleaire.
US5216401A (en) *	1992-06-02	1993-06-01	The United States Of America As Represented By The Secretary Of The Army	Magnetic field sources having non-distorting access ports
WO1994002951A1 (fr) *	1992-07-27	1994-02-03	New York University	Aimants a intensite de champ elevee destines a des applications medicales
US5428333A (en) *	1993-01-22	1995-06-27	New York University	Method and apparatus for compensation of field distortion in a magnetic structure
US5396209A (en) *	1994-02-16	1995-03-07	The United States Of America As Represented By The Secretary Of The Army	Light-weight magnetic field sources having distortion-free access ports
US5523731A (en) *	1995-04-12	1996-06-04	The United States Of America As Represented By The Secretary Of The Army	Simplified method of making light-weight magnetic field sources having distortion-free access ports
GB2425842A (en) *	2005-05-05	2006-11-08	Plant Bioscience Ltd	Magnetic resonance sensor with rotatable magnetic rods placed around the sample
US7498915B1 (en) *	2005-11-18	2009-03-03	The United States Of America As Represented By The Secretary Of The Army	Application of superconductive permanent magnets
CN100370558C (zh) *	2006-02-16	2008-02-20	北京航空航天大学	磁场沿磁体轴向方向均匀分布的渐变磁体
WO2007120057A1 (fr) *	2006-04-18	2007-10-25	Victoria Link Limited	Appareil generateur de champ magnetique
EP2195815B1 (fr) *	2007-10-04	2016-12-07	Hussmann Corporation	Dispositif à aimants permanents
US8179220B2 (en) *	2008-05-28	2012-05-15	Otto Voegeli	Confined field magnet system and method
US8209988B2 (en) *	2008-09-24	2012-07-03	Husssmann Corporation	Magnetic refrigeration device
CH701267B1 (fr) *	2009-06-02	2014-08-29	Clean Cooling Systems Sa	Générateur de champ magnétique et dispositif magnétocalorique comportant ledit générateur de champ magnétique.
FR2949601A1 (fr) *	2009-08-28	2011-03-04	Commissariat Energie Atomique	Dispositif d'aimant permanent cylindrique a champ magnetique induit d'orientation predeterminee et procede de fabrication
FR2949604B1 (fr)	2009-08-28	2012-03-02	Commissariat Energie Atomique	Structure aimantee axisymetrique induisant en son centre un champ homogene d'orientation predeterminee
US9659706B2 (en) *	2011-09-22	2017-05-23	The Trustees Of Dartmouth College	Methods for making radially anisotropic thin-film magnetic torroidal cores
JP5989415B2 (ja) *	2012-06-20	2016-09-07	信越化学工業株式会社	筒状磁気回路の組立方法
CN103048176A (zh) *	2012-12-13	2013-04-17	宁波大学	适用于化学实验室的磁性复合微粒悬浊液离析装置
US10845441B1 (en) *	2017-10-17	2020-11-24	Nuevomr, Llc	Continuously adjustable passive shims for magnets
EP3489972B1 (fr) *	2017-11-27	2020-04-15	Premo, S.A.	Dispositif inducteur à configuration de poids léger
EP3808457A1 (fr) *	2019-10-16	2021-04-21	Chin-Ming Hsieh	Dispositif de magnétisation
US11961664B2 (en)	2020-07-31	2024-04-16	Fermi Research Alliance, Llc	High temperature superconducting magnet
CN112594963B (zh) *	2020-12-31	2024-08-23	包头稀土研究院	室温磁制冷机用圆柱型阵列式磁体及其装配方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS61102544A (ja) *	1984-10-25	1986-05-21	Sumitomo Special Metals Co Ltd	磁界発生装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL66942C (fr) *		1900-01-01
GB447409A (en) *	1934-11-13	1936-05-13	Cleopatra Leonita Eugenie Olga	Improvements in cutting devices particularly for opening milk and like cartons
NL133615C (fr) *	1962-10-04
US4538130A (en) *	1984-04-23	1985-08-27	Field Effects, Inc.	Tunable segmented ring magnet and method of manufacture
JPS61218110A (ja) *	1985-03-23	1986-09-27	キヤノン株式会社	発熱抵抗体
US4614930A (en) *	1985-03-25	1986-09-30	General Electric Company	Radially magnetized cylindrical magnet
US4703276A (en) *	1985-04-24	1987-10-27	Elscint Ltd.	Permanent magnet ring assembly for NMR imaging system and method for using such assembly
DE3518852A1 (de) *	1985-05-23	1986-11-27	Siemens AG, 1000 Berlin und 8000 München	Magnet eines kernspintomographen
US4707663A (en) *	1985-08-15	1987-11-17	Fonar Corporation	Nuclear magnetic resonance apparatus using low energy magnetic elements
US4658228A (en) *	1986-05-01	1987-04-14	The United States Of America As Represented By The Secreatry Of The Army	Confinement of longitudinal, axially symmetric, magnetic fields to annular regions with permanent magnets
US4692732A (en) *	1986-05-30	1987-09-08	The United States Of America As Represented By The Secretary Of The Army	Remanence varying in a leakage free permanent magnet field source
US4701737A (en) *	1986-05-30	1987-10-20	The United States Of America As Represented By The Secretary Of The Army	Leakage-free, linearly varying axial permanent magnet field source

1986
- 1986-10-17 FR FR8614417A patent/FR2605450B1/fr not_active Expired
1987
- 1987-10-13 US US07/353,674 patent/US4999600A/en not_active Expired - Fee Related
- 1987-10-13 EP EP87906826A patent/EP0328537B1/fr not_active Expired - Lifetime
- 1987-10-13 JP JP62506178A patent/JPH02501004A/ja active Pending
- 1987-10-13 DE DE8787906826T patent/DE3783774T2/de not_active Expired - Fee Related
- 1987-10-13 WO PCT/FR1987/000392 patent/WO1988002923A1/fr not_active Ceased

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS61102544A (ja) *	1984-10-25	1986-05-21	Sumitomo Special Metals Co Ltd	磁界発生装置

Also Published As

Publication number	Publication date
DE3783774D1 (de)	1993-03-04
FR2605450A1 (fr)	1988-04-22
EP0328537B1 (fr)	1993-01-20
WO1988002923A1 (fr)	1988-04-21
DE3783774T2 (de)	1993-05-13
FR2605450B1 (fr)	1988-12-02
EP0328537A1 (fr)	1989-08-23
US4999600A (en)	1991-03-12

Publication	Publication Date	Title
JPH02501004A (ja)	1990-04-05	一様な横方向の誘導磁界を発生させるための円筒形永久磁石
US5332971A (en)	1994-07-26	Permanent magnet for nuclear magnetic resonance imaging equipment
US4695802A (en)	1987-09-22	Nuclear magnetic resonance apparatus with a permanent magnet
US5631616A (en)	1997-05-20	Magnetic field generating device for use in MRI
De Lacheisserie et al.	2012	Magnetism: II-Materials and Applications
JPH02501002A (ja)	1990-04-05	赤道方向からのアクセスが可能な永久磁石
US20240120138A1 (en)	2024-04-11	Lightweight asymmetric magnet arrays with mixed-phase magnet rings
US4994777A (en)	1991-02-19	Enhanced magnetic field within enclosed cylindrical cavity
JPH0587962B2 (fr)	1993-12-20
JPH02500685A (ja)	1990-03-08	永久磁石を用いる円筒形ｎｍｒバイアス磁石装置とそのための方法
WO1999040593A1 (fr)	1999-08-12	Conception d'aimants ouverts et dispositif a aimants ouverts destine aux sondes d'imagerie/traitement par resonance magnetique
US11193998B2 (en)	2021-12-07	Permanent magnet arrangement for generating a homogeneous field (“3D Halbach”)
US11333728B2 (en)	2022-05-17	Pre-polarisation magnet arrangement
US4728895A (en)	1988-03-01	System of coils for producing additional fields for obtaining polarization fields with constant gradients in a magnet having polarization pole pieces for image production by nuclear magnetic resonance
JPH07375A (ja)	1995-01-06	一定の空間内で安定かつ均等な磁気誘導を生成するための永久磁石構造
US9188653B2 (en)	2015-11-17	Permanent magnet device for generating an offset uniform magnetic field
JPH03501342A (ja)	1991-03-28	Ｎｍｒ映像装置、不均一性を補正する方法、及びｎｍｒ映像装置に使用される磁石を作製する方法
EP0801314B1 (fr)	1999-07-14	Assamblage d'aimants pour l'imagerie par résonance magnétique avec des aimants permanents en vis-à-vis
US11204404B2 (en)	2021-12-21	Measurement magnet arrangement
JPH0423411A (ja)	1992-01-27	Ｍｒｉ用磁界発生装置
JPH02501003A (ja)	1990-04-05	関心領域に永久磁界を発生させるための磁化調整可能な磁性ブロック
JPH04138131A (ja)	1992-05-12	Ｍｒｉ用磁界発生装置
JPH0956692A (ja)	1997-03-04	磁石対向型永久磁石磁気回路とその磁場調整方法
JP2003153879A (ja)	2003-05-27	傾斜磁場発生コイル及びｍｒｉ用磁場発生装置
Das et al.	2003	Characterization of samarium-cobalt TWT magnets